Structural inspection of stainless steel medium and thick plates is one of the key steps to ensure product quality and safety in use. The following are common steps and methods for structural inspection of stainless steel medium and thick plates:
Step 1: Check the appearance of the board
Before starting the structural inspection, the appearance of the medium-thick stainless steel plate needs to be checked. It should be inspected for obvious scratches, depression or bulge, as well as other observable cosmetic defects. Any abnormalities should be recorded and the manufacturer promptly contacted. In addition, pay attention to the flatness and surface gloss of the board to ensure that it meets the requirements.
Step 2: Measure the thickness of the board
The thickness of the plate is an important parameter for structural inspection. Using a suitable measuring tool, such as a micrometer or ultrasonic thickness gauge, measure various areas of the board. Measurements should be compared to the manufacturer's specifications to determine if the board thickness meets requirements.
Step 3: Check the hardness of the board
The hardness of the board has an important impact on its performance and service life. The hardness of the board is checked by using a hardness tester to ensure it meets manufacturing standards and customer requirements. Appropriate test points should be selected during testing and the test results should be recorded.
Step 4: Test the chemical composition of the board
Chemical composition is one of the important indicators for evaluating the quality of stainless steel plates. Use chemical analysis instruments to perform standard chemical composition analysis on the board. The main focus is on whether the ingredients meet manufacturing standards and specification requirements, especially the content of alloying elements.
Step 5: Carry out metallographic examination
Metallographic examination is an important method to evaluate the structure of the plate. The board is sampled first and the necessary sanding and polishing is performed. The samples were then observed and analyzed using a metallographic microscope. In addition, hardness testing can also be performed using a microhardness tester to determine the difference in hardness in different areas.
Step 6: Conduct mechanical property testing
Mechanical properties are one of the important indicators of stainless steel medium and thick plates. By conducting mechanical tests such as tensile, impact and bending, the strength, plasticity and toughness of the plate are evaluated. The test results should be compared with manufacturing standards to evaluate whether the stainless steel plate meets the requirements.
Step 7: Conduct corrosion resistance test
Corrosion resistance is one of the key properties of stainless steel. Test the corrosion properties of the plates by using equipment such as salt spray testers and corrosion testers. The test results should be compared with manufacturing standards to determine whether the stainless steel plate can meet the requirements for use in specific corrosive environments.
Step 8: Other special tests
Depending on the specific requirements, other special tests may also be required, such as fracture toughness testing, low temperature impact testing, etc. These tests are primarily intended to evaluate the performance of stainless steel plates under special conditions.
Through the structural inspection of the above steps and methods, the quality and performance of stainless steel medium and thick plates can be comprehensively evaluated. During the inspection process, relevant standards and specifications should be strictly referenced, and detailed records and reports should be maintained so that the results can be reviewed and traced.

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